Click a shape that looks like a large bowl on top of a table.  The table has triangular legs., and the bowl
Keep that piece, but start paying attention!  Click a tall vertical chimney on an asymmetrical triangle base.  The chimney has perfectly straight sides
Click a piece that looks like a stack of upside down triangles.  The triangle on top is very wide, and below it are two triangle points side by side, both pointing down

Outcome: successful
Speaker comments: N/A